Right now a user has to refresh a hosts inventory of Procs. They do this by usually running the eventloop whenever they need a refresh or in a thread. However on living systems the host really needs to refresh itself, to create less of a burden on the user.
Marking as duplicate of bug #1788 - replace requestRefresh() with Host.requestAddRefreshObserver. Clients of the Host ask to be notified when something interesting happend and at what frequency. The host then internally if/when to schedule refresh updates and notify all interested observers. *** This bug has been marked as a duplicate of 1788 ***